Based on my game-by-game analysis above and taking into consideration outcomes that were affected either injuries to key Cavs players or key opponents, I concluded the Cavs were about a 47-35 team last year once injuries were removed from the equation. I think that will be their starting point next season since there will be no significant losses from last year.
How many additional wins above 47 they can achieve will be mostly determined by injury luck and how much internal improvement can be made, primarily by Mobley and Okoro. The other big factor will be whether they can find a replacement for Rubio - either LeVert, Sexton, Rubio himself, all of the above, or signing a veteran backup point guard with Rubio's skill level.
The wild card is Sexton. Assuming he will be back and fully recovered, how much better, if any, does he make this team?
Okoro, Wade, and Stevens are really going to have to push themselves to get better this summer if they want to maintain their minutes at the level of last season. There's going to be a war for minutes at the off-guard position between Sexton, LeVert, and Okoro. Also at the small forward position between Markkanen, Stevens, and Okoro. There's going to be a mid-first round pick somewhere in the mix as well.